38220101 has 4 divisors (see below), whose sum is σ = 38234400. Its totient is φ = 38205804.

The previous prime is 38220067. The next prime is 38220109. The reversal of 38220101 is 10102283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10102283 = 79 ⋅127877.

It is a cyclic number.

It is not a de Polignac number, because 38220101 - 2¹⁴ = 38203717 is a prime.

It is a super-2 number, since 2×38220101² = 2921552240900402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811 + ... + 8928.

It is an arithmetic number, because the mean of its divisors is an integer number (9558600).

Almost surely, 2^38220101 is an apocalyptic number.

It is an amenable number.

38220101 is a deficient number, since it is larger than the sum of its proper divisors (14299).

38220101 is a wasteful number, since it uses less digits than its factorization.

38220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14298.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 38220101 is about 6182.2407749941. The cubic root of 38220101 is about 336.8453916033.

Adding to 38220101 its reverse (10102283), we get a palindrome (48322384).

The spelling of 38220101 in words is "thirty-eight million, two hundred twenty thousand, one hundred one".